Place the milk, yogurt, maple syrup, and vanilla into a mixing bowl. Stir until well combined.
Add the oats, and seeds and mix well. Taste for flavor and adjust if necessary by adding more vanilla and maple syrup. Cover and store in the fridge overnight.
In the morning, serve the oats with a topping of yogurt and berries, and toasted nuts.
Notes
The toppings are optional and have not been included in the nutritional information below.